/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file           : main.c
  * @brief          : Main program body
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2025 STMicroelectronics.
  * All rights reserved.
  *
  * This software is licensed under terms that can be found in the LICENSE file
  * in the root directory of this software component.
  * If no LICENSE file comes with this software, it is provided AS-IS.
  *
  ******************************************************************************
  */
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "usart.h"
#include "gpio.h"

/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include <stdio.h>
/* USER CODE END Includes */

/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */


typedef struct pmsx003
{
	uint16_t cpm1_0;
	uint16_t cpm2_5;
	uint16_t cpm10;
	uint16_t pm1_0;
	uint16_t pm2_5;
	uint16_t pm10;
	uint16_t Gt0_3;
	uint16_t Gt0_5;
	uint16_t Gt1;
	uint16_t Gt2_5;
	uint16_t Gt5;
	uint16_t Gt10;
}PMS;



static const uint8_t pmInitBuf[] = {0x42 ,0x4D ,0xE1 ,0x00 ,0x00 ,0x01 ,0x70};
static const uint8_t pmGetBuf[] = {0x42 ,0x4D ,0xE2 ,0x00 ,0x00 ,0x01 ,0x71};


/* USER CODE END PTD */

/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */

/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */

/* USER CODE END PM */

/* Private variables ---------------------------------------------------------*/

/* USER CODE BEGIN PV */

/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
/* USER CODE BEGIN PFP */

/* USER CODE END PFP */

/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */

uint8_t initPMS(void)
{
	uint8_t volatile pmDataBuf[8]={0};
	uint8_t volatile initFlag = 2;
	while(initFlag)
	{
		HAL_Delay(10);
		HAL_UART_Transmit(&huart2,pmInitBuf,7,100);
		HAL_UART_Receive(&huart2,(uint8_t *)pmDataBuf,8,100);
		
		if((pmDataBuf[6] == 0x01) && (pmDataBuf[7] == 0x74))
		{
			return 0;
		}
			
		else
			initFlag--;
	}
	return 1;
}


uint8_t getPMSData(PMS *pms)
{
	uint8_t volatile pmDataBuf[32]={0};
	uint8_t volatile initFlag = 2;
	uint16_t volatile sumBuf = 0;
	while(initFlag)
	{
		HAL_Delay(10);
		HAL_UART_Transmit(&huart2,pmGetBuf,7,100);
		HAL_UART_Receive(&huart2,(uint8_t *)pmDataBuf,32,300);
		
		for(uint8_t i=0;i<30;i++)
		{
			sumBuf += pmDataBuf[i];
		}
		if(sumBuf == 0)
		{
			initFlag--;
			continue;
		}
		
		if(sumBuf == (((uint16_t) (pmDataBuf[30]<<8)) | (pmDataBuf[31])))
		{
			pms->cpm1_0 = (uint16_t) (pmDataBuf[4]<<8) | (pmDataBuf[5]);
			pms->cpm2_5 = (uint16_t) (pmDataBuf[6]<<8) | (pmDataBuf[7]);
			pms->cpm10 = (uint16_t) (pmDataBuf[8]<<8) | (pmDataBuf[9]);
			pms->pm1_0 = (uint16_t) (pmDataBuf[10]<<8) | (pmDataBuf[11]);
			pms->pm2_5 = (uint16_t) (pmDataBuf[12]<<8) | (pmDataBuf[13]);
			pms->pm10 = (uint16_t) (pmDataBuf[14]<<8) | (pmDataBuf[15]);
			pms->Gt0_3 = (uint16_t) (pmDataBuf[15]<<8) | (pmDataBuf[16]);
			pms->Gt0_5 = (uint16_t) (pmDataBuf[17]<<8) | (pmDataBuf[18]);
			pms->Gt1 = (uint16_t) (pmDataBuf[19]<<8) | (pmDataBuf[20]);
			pms->Gt10 = (uint16_t) (pmDataBuf[21]<<8) | (pmDataBuf[22]);
			pms->Gt2_5 = (uint16_t) (pmDataBuf[23]<<8) | (pmDataBuf[24]);
			pms->Gt5 = (uint16_t) (pmDataBuf[25]<<8) | (pmDataBuf[26]);
			pms->Gt10 = (uint16_t) (pmDataBuf[27]<<8) | (pmDataBuf[28]);
			return 0;
		}
		
		else
		{
			initFlag--;
		}
		
	}
		printf("PMSX003 Data read failed\n");
		return 1;
}

void printPMSData(PMS *pms)
{

	printf("CPM1.0: %d ug/m3\n",pms->cpm1_0);
	printf("CPM2.5: %d ug/m3\n",pms->cpm2_5);
	printf("CPM10: %d ug/m3\n",pms->cpm10);
	printf("PM1.0: %d ug/m3\n",pms->pm1_0);
	printf("PM2.5: %d ug/m3\n",pms->pm2_5);
	printf("PM10: %d ug/m3\n",pms->pm10);
	printf("Gt0.3: %d um\n",pms->Gt0_3);
	printf("Gt0.5: %d um\n",pms->Gt0_5);
	printf("Gt1: %d um\n",pms->Gt1);
	printf("Gt2.5: %d um\n",pms->Gt2_5);
	printf("Gt5: %d um\n",pms->Gt5);
	printf("Gt10: %d um\n",pms->Gt10);
}

/* USER CODE END 0 */

/**
  * @brief  The application entry point.
  * @retval int
  */
int main(void)
{
  /* USER CODE BEGIN 1 */
	
  /* USER CODE END 1 */

  /* MCU Configuration--------------------------------------------------------*/

  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
  HAL_Init();

  /* USER CODE BEGIN Init */

  /* USER CODE END Init */

  /* Configure the system clock */
  SystemClock_Config();

  /* USER CODE BEGIN SysInit */
	
  /* USER CODE END SysInit */

  /* Initialize all configured peripherals */
  MX_GPIO_Init();
  MX_USART1_UART_Init();
  MX_USART2_UART_Init();
  /* USER CODE BEGIN 2 */
	
	PMS pms_data;
	
	while(initPMS())
	{
		printf("PMS_Sensor error\n");
		HAL_Delay(500);
	}
  /* USER CODE END 2 */

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  while (1)
  {
		printf("is running\n");
		if(getPMSData(&pms_data) == 0)
		{
			printPMSData(&pms_data);
		}
		
		HAL_Delay(1000);
    /* USER CODE END WHILE */

    /* USER CODE BEGIN 3 */
  }
  /* USER CODE END 3 */
}

/**
  * @brief System Clock Configuration
  * @retval None
  */
void SystemClock_Config(void)
{
  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};

  /** Initializes the RCC Oscillators according to the specified parameters
  * in the RCC_OscInitTypeDef structure.
  */
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
  RCC_OscInitStruct.HSEState = RCC_HSE_ON;
  RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
  RCC_OscInitStruct.HSIState = RCC_HSI_ON;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
  RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  {
    Error_Handler();
  }

  /** Initializes the CPU, AHB and APB buses clocks
  */
  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
                              |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;

  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
  {
    Error_Handler();
  }
}

/* USER CODE BEGIN 4 */

/* USER CODE END 4 */

/**
  * @brief  This function is executed in case of error occurrence.
  * @retval None
  */
void Error_Handler(void)
{
  /* USER CODE BEGIN Error_Handler_Debug */
  /* User can add his own implementation to report the HAL error return state */
  __disable_irq();
  while (1)
  {
  }
  /* USER CODE END Error_Handler_Debug */
}

#ifdef  USE_FULL_ASSERT
/**
  * @brief  Reports the name of the source file and the source line number
  *         where the assert_param error has occurred.
  * @param  file: pointer to the source file name
  * @param  line: assert_param error line source number
  * @retval None
  */
void assert_failed(uint8_t *file, uint32_t line)
{
  /* USER CODE BEGIN 6 */
  /* User can add his own implementation to report the file name and line number,
     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
  /* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */
